If he's not already, I'm sure your son is going to be a great helper with the Challenger. I remember helping my dad when he worked on the cars. Those will be great memories for both of you.
He's been bugging me to work on it constantly now that he's older,my dailey drivers keep breaking down if it's not one thing it's another,changed the wifes intrepid tranny about two years ago,been doing my 99 cougar tranny r & r ,dailey driver for the last couple months off and on.and i have a supercharged park ave ultra sitting in my driveway with a tranny out in that also that i haven't gotting to yet,like i said never no time to work on my chally.he helped sand down and prime my right fender last time we worked on it though and was a great help.
remember trying to walk in the house and the wife says i don't think so,we were both full of sanding dust from head to toe.
waiting for summer to get going on it again.